On Tue, Feb 27, 2018 at 06:07:46PM +0800, Ming Lei wrote:
> This patch can support to partition host-wide tags to multiple hw queues,
> so each hw queue related data structures(tags, hctx) can be accessed in
> NUMA locality way, for example, the hw queue can be per NUMA node.
> It is observed IOPS can be improved much in this way on null_blk test.

null_blk isn't too interesting, so some real hardware number would
be very useful here.

Also the documentation should be a lot less sparse.  When are we going
to set this flag?  What help are we going to give driver authors to
guide chosing the option?

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